<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <link rel="stylesheet" href="./animate.css">
</head>
<body>
        <div class="" id="skyscrapper">
            <div class="box" id='box_a'></div>
            <div class="box" id='box_b'></div>             
            <div class="box" id='box_c'></div>
        </div>
        <script src="./gasp.min.js"></script>
        <script src="./animate.js"></script>
                <script>
                     var skyObj = {
        leftAnimated:['#box_a','#box_c'],
        rightAnimated:['#box_b'],  
    }
                new Animation(skyObj)
                </script>
</body>
</html>